季节变化和地理位置对扁豆虫营养成分的影响

IF 4.7 3区 农林科学 Q1 ENTOMOLOGY Journal of Insects as Food and Feed Pub Date : 2023-07-03 DOI:10.3920/jiff2022.0157
O. N. Madimutsa, L. Macheka, F. Matiza Ruzengwe, J. Mubaiwa, F. Manditsera
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引用次数: 0

摘要

白鳍虫(Gonimbrasia belina)的消费有助于低社会经济社区蛋白质和其他几种营养物质的可持续供应。然而,拖把虫是双伏性的,每个雨季产生两代,这被认为会影响它们的营养价值。本研究调查了羽化季节和地理位置对拖把虫营养成分的影响。对津巴布韦瓜达区三个地点在三个莫潘虫出现季节(2020年11月至12月、2021年4月至5月和2021年11月-12月)采集的去甲莫潘虫样本进行了近似矿物成分和脂肪酸分析。粗蛋白质和粗脂肪分别在52.5-58.8%和12.0-18.6%DM之间。钾(1195.3-1759.9)、镁(104.6-225.5)和钙(51.2-145.5)是最丰富的常量元素(mg/100g DM),而铁(10.6-21.6)和锌(13.8-17.9)是最充足的微量元素(mg/100mg DM)。使用衰减全反射傅立叶变换红外光谱(ATR-FTIR),发现莫潘蠕虫脂肪富含油酸(ω-9)、亚油酸(ω-6)和棕榈油酸(ω-7)。此外,研究结果显示,地理位置(采样位置)对莫潘虫的矿物质含量有显著影响(Bonferroni校正α<0.002),而羽化季节对脂肪、蛋白质、灰分粗纤维和矿物质含量有明显影响。这些发现表明,由于莫潘虫含有大量和微量营养素,可以显著缓解目标社区的蛋白质、锌和铁缺乏。更重要的是,关于羽化季节和地理位置引起的营养变化的研究结果提供了信息,这是驯化莫潘虫以实现其最佳营养含量的关键。
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Effects of seasonal variation and geographical location on the nutritional composition of mopane worm (Gonimbrasia belina)
Mopane worm (Gonimbrasia belina) consumption contributes to the sustainable supply of protein and several other nutrients for low socio-economic communities. However, mopane worm are bivoltine, producing two generations per rainy season which is postulated to affect their nutritional value. This research investigated the effect of emergence season and geolocation on the nutritional composition of mopane worms. Proximate, mineral composition and fatty acid profile were analysed on degutted mopane worm samples collected over three mopane worm emergence seasons (November-December 2020, April-May 2021, and November-December 2021) from three locations in Gwanda district, Zimbabwe. Crude protein and crude fat ranged between 52.5-58.8 and 12.0-18.6% DM respectively. Potassium (1,195.3-1,759.9), magnesium (104.6-225.5) and calcium (51.2-145.5) were the most abundant macroelements (mg/100 g DM) whilst iron (10.6-21.6) and zinc (13.8-17.9) were the most abundant microelements (mg/100 g DM). Using an attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), mopane worm fat was found to be highly saturated with oleic (ω-9), linoleic (ω-6) and palmitoleic (ω-7) fatty acids. Furthermore, the results revealed a significant (Bonferroni-correction α<0.002) influence of geolocation (sampling location) on mineral content of mopane worms whilst emergence season had a significant influence on fat, protein, ash crude fibre and mineral content. These findings indicate that mopane worm due to their high content of both macro- and micronutrients could contribute significantly to the alleviation of protein, zinc, and iron deficiencies in target communities. More so, the findings on nutritional variation due to emergence season and geolocation provide information that is key in domestication of the mopane worm for realisation of its optimum nutrient content.
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来源期刊
Journal of Insects as Food and Feed
Journal of Insects as Food and Feed Agricultural and Biological Sciences-Insect Science
CiteScore
7.00
自引率
17.60%
发文量
133
期刊介绍: The Journal of Insects as Food and Feed covers edible insects from harvesting in the wild through to industrial scale production. It publishes contributions to understanding the ecology and biology of edible insects and the factors that determine their abundance, the importance of food insects in people’s livelihoods, the value of ethno-entomological knowledge, and the role of technology transfer to assist people to utilise traditional knowledge to improve the value of insect foods in their lives. The journal aims to cover the whole chain of insect collecting or rearing to marketing edible insect products, including the development of sustainable technology, such as automation processes at affordable costs, detection, identification and mitigating of microbial contaminants, development of protocols for quality control, processing methodologies and how they affect digestibility and nutritional composition of insects, and the potential of insects to transform low value organic wastes into high protein products. At the end of the edible insect food or feed chain, marketing issues, consumer acceptance, regulation and legislation pose new research challenges. Food safety and legislation are intimately related. Consumer attitude is strongly dependent on the perceived safety. Microbial safety, toxicity due to chemical contaminants, and allergies are important issues in safety of insects as food and feed. Innovative contributions that address the multitude of aspects relevant for the utilisation of insects in increasing food and feed quality, safety and security are welcomed.
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